No re-baking, no holding ovens, no quivers. 

MMA electrodes from VacPac™ can be used straight from the package without the need to re-bake them and store them temporarily in holding ovens and quivers. Upon opening, fresh and dry electrodes are guaranteed when the vacuum is maintained. Electrodes of low moisture absorption type (LMA, classified as H4 or H5), re-absorb moisture slowly from the air. The safe exposure time for this type of electrode is 12 hours* after openingthe VacPac™ with the foil left in place.

* Valid at standard AWS test

conditions of 26.7 °C and 80% RH.

How to handle VacPac™

To protect the vacuum foil, avoid using a knife or any other sharp object when opening the outer package. Keep the electrodes inside the package and do not take out more than one electrode at a time. Low moisture absorption type electrodes (LMA) that have been exposed to the atmosphere in an opened VacPac™ for more than 12 hours (26.7°C and 80% RH) should be discarded or re-dried.